Performance of two-samples pseudo-median procedure

This article investigates the performance of two-sample pseudo-median based procedure in testing differences between groups. The procedure is a modification of the one-sample Wilcoxon procedure using the pseudo-median of differences between group values as the central measure of location. The test w...

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Main Authors:	Nor Aishah Ahad, Abdul Rahman Othman, Sharipah Soaad Syed Yahaya
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2012
Online Access:	http://journalarticle.ukm.my/5478/ http://journalarticle.ukm.my/5478/ http://journalarticle.ukm.my/5478/1/14%2520Nor%2520Aishah.pdf

id	ukm-5478
recordtype	eprints
spelling	ukm-54782016-12-14T06:38:34Z http://journalarticle.ukm.my/5478/ Performance of two-samples pseudo-median procedure Nor Aishah Ahad, Abdul Rahman Othman, Sharipah Soaad Syed Yahaya, This article investigates the performance of two-sample pseudo-median based procedure in testing differences between groups. The procedure is a modification of the one-sample Wilcoxon procedure using the pseudo-median of differences between group values as the central measure of location. The test was conducted on two groups with moderate sample sizes of symmetric and asymmetric distributions. The performance of the procedure was measured in terms of Type I error and power rates computed via Monte Carlo methods. The performance of the procedure was compared against the t-test and Mann-Whitney-Wilcoxon test. The findings from this study revealed that the pseudo-median procedure performed very well in controlling Type I error rates close to the nominal value. The pseudo-median procedure outperformed the Mann-Whitney-Wilcoxon test and is comparable to the t-test in controlling Type I error and maintaining adequate power Universiti Kebangsaan Malaysia 2012-09 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/5478/1/14%2520Nor%2520Aishah.pdf Nor Aishah Ahad, and Abdul Rahman Othman, and Sharipah Soaad Syed Yahaya, (2012) Performance of two-samples pseudo-median procedure. Sains Malaysiana, 41 (9). pp. 1149-1154. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	This article investigates the performance of two-sample pseudo-median based procedure in testing differences between groups. The procedure is a modification of the one-sample Wilcoxon procedure using the pseudo-median of differences between group values as the central measure of location. The test was conducted on two groups with moderate sample sizes of symmetric and asymmetric distributions. The performance of the procedure was measured in terms of Type I error and power rates computed via Monte Carlo methods. The performance of the procedure was compared against the t-test and Mann-Whitney-Wilcoxon test. The findings from this study revealed that the pseudo-median procedure performed very well in controlling Type I error rates close to the nominal value. The pseudo-median procedure outperformed the Mann-Whitney-Wilcoxon test and is comparable to the t-test in controlling Type I error and maintaining adequate power
format	Article
author	Nor Aishah Ahad, Abdul Rahman Othman, Sharipah Soaad Syed Yahaya,
spellingShingle	Nor Aishah Ahad, Abdul Rahman Othman, Sharipah Soaad Syed Yahaya, Performance of two-samples pseudo-median procedure
author_facet	Nor Aishah Ahad, Abdul Rahman Othman, Sharipah Soaad Syed Yahaya,
author_sort	Nor Aishah Ahad,
title	Performance of two-samples pseudo-median procedure
title_short	Performance of two-samples pseudo-median procedure
title_full	Performance of two-samples pseudo-median procedure
title_fullStr	Performance of two-samples pseudo-median procedure
title_full_unstemmed	Performance of two-samples pseudo-median procedure
title_sort	performance of two-samples pseudo-median procedure
publisher	Universiti Kebangsaan Malaysia
publishDate	2012
url	http://journalarticle.ukm.my/5478/ http://journalarticle.ukm.my/5478/ http://journalarticle.ukm.my/5478/1/14%2520Nor%2520Aishah.pdf
first_indexed	2023-09-18T19:44:14Z
last_indexed	2023-09-18T19:44:14Z
_version_	1777405793133395968

Performance of two-samples pseudo-median procedure

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